{"id":"CVE-2026-107705","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-107705","generatedAt":"2026-10-28T05:26:34.924Z","title":"Poppler 0.42.0 through 26.10.0 contains a stack-based buffer overflow in Decrypt::revision6Hash() that allows attackers controlling the password to overwrite stack memory when opening AESV3/R6 encrypted PDFs.","description":"Poppler 0.42.0 through 26.10.0 contains a stack-based buffer overflow in Decrypt::revision6Hash() that allows attackers controlling the password to overwrite stack memory when opening AESV3/R6 encrypted PDFs. Attackers can supply a password longer than 127 bytes through applications using the libpoppler, libpoppler-glib or C++ API to overflow the K1 and E buffers, crashing the process or corrupting memory.","published":"2026-10-08T20:17:35.000Z","lastModified":"2026-10-14T17:18:18.000Z","status":"Deferred","sourceIdentifier":"disclosure@vulncheck.com","cvss":{"version":"4.0","score":8.3,"severity":"HIGH","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-121"],"affected":[],"epss":{"score":0.00324,"percentile":0.25241,"date":"2026-10-27","history":[{"date":"2026-10-09","score":0.00328,"percentile":0.23874}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.32%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-08T20:17:35.000Z","detail":{"score":"8.3","severity":"HIGH","publishedAt":"2026-10-08T20:17:35.300Z"},"summary":"New CVE, high severity (CVSS 8.3)."}],"references":[{"url":"https://gitlab.freedesktop.org/poppler/poppler","source":"disclosure@vulncheck.com"},{"url":"https://gitlab.freedesktop.org/poppler/poppler/-/blob/poppler-26.10.0/poppler/Decrypt.cc#L1767","source":"disclosure@vulncheck.com"},{"url":"https://gitlab.freedesktop.org/poppler/poppler/-/merge_requests/2398","source":"disclosure@vulncheck.com"},{"url":"https://gitlab.freedesktop.org/poppler/poppler/-/work_items/1814","source":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/poppler-0.42.0-through-26.10.0-stack-buffer-overflow-via-decrypt-revision6hash","source":"disclosure@vulncheck.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-107705","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}